TEST_FIFO_NAME
(void)unlink(TEST_FIFO_NAME);
if (mkfifo(TEST_FIFO_NAME, 0644) == -1)
child_fd = open(TEST_FIFO_NAME, O_WRONLY);
parent_fd = open(TEST_FIFO_NAME, O_RDONLY);
(void)unlink(TEST_FIFO_NAME);
(void)unlink(TEST_FIFO_NAME);
if (mkfifo(TEST_FIFO_NAME, 0644) == -1)
child_fd = open(TEST_FIFO_NAME, O_WRONLY);
parent_fd = open(TEST_FIFO_NAME, O_RDONLY);
(void)unlink(TEST_FIFO_NAME);